Error testing my own dataset using pix2pix

[Rentong2022]

After training my dataset with pix2pix, I wanted to test it, but encountered the following issue：
Traceback (most recent call last):
File "C:\Users\o\Desktop\Graduation_Design_Code\pytorch-pix2pixgan\pytorch-CycleGAN-and-pix2pix-master\test.py", line 52, in
model.setup(opt) # regular setup: load and print networks; create schedulers
File "C:\Users\o\Desktop\Graduation_Design_Code\pytorch-pix2pixgan\pytorch-CycleGAN-and-pix2pix-master\models\base_model.py", line 88, in setup
self.load_networks(load_suffix)
File "C:\Users\o\Desktop\Graduation_Design_Code\pytorch-pix2pixgan\pytorch-CycleGAN-and-pix2pix-master\models\base_model.py", line 210, in load_networks
for key in list(state_dict.keys()): # need to copy keys here because we mutate in loop
File "D:\anaconda\envs\rt\lib\site-packages\torch\nn\modules\module.py", line 1207, in getattr
raise AttributeError("'{}' object has no attribute '{}'".format(
AttributeError: 'UnetGenerator' object has no attribute 'keys'
How should I solve it? Thank you all